Energy

Westwood has the ability and the experience in the energy sector to act as a general contractor looking after all facets of high voltage projects, or we can perform work as a subcontractor looking after the electrical portion of the project.

With both Brown and Green-field experience, we understand the risks involved with high voltage works and we have qualified supervisors and trades people to perform the highest quality work safely as well as on time and on budget. In addition, we have the capabilities to offer design build services.

Re-routing existing station service transformer cable to new transfer switch

Station service, power, control and communication cables

BC Hydro Merritt Greenfield Substation

Westwood was contracted by BC Hydro as the Prime and General Contractor to complete a Greenfield substation that comprised of the general works for the above sub-grade scope including electrical, mechanical, P&C/telecom, and civil.

Installation of 12kV disconnect, CT’s and PT’s
Control including all protection and control wiring, battery system and building services

FortisBC Bentley Terminal Substation

Westwood was contracted by BC Hydro as the Prime and General Contractor to complete the 40,000 square meter Greenfield substation that comprised of the general works for the above and below grade scope including civil, concrete, electrical, mechanical, and P&C/telecom.

Installation, assembly and oiling of two 230kV 150MVA JSHP Transformers,

Refurbishment and installation, assembly and oiling of one 161kV 100MVA General Electric Transformer; this transformer was relocated as part of contract from the FortisBC RGA Substation located in Penticton, BC

Nine SF6 circuit breakers

Potential and current transformers

Capacitive voltage transformers

Surge arrestors

Line disconnects

Lightning mast and static shield cable system

Assemble and install all 25kV cabling and equipment inside control building including:

Two 500kVA pad mount transformers, 12kV – 120/208V

FortisBC Benvoulin Greenfield Substation

Westwood was contracted by FortisBC as the Prime and General Contractor for the completion of the Greenfield substation in Kelowna. This project included the installation of;

Installation, assembly, dressing and oiling of the 138/25kV 40MVA transformer

Wiring of new P&C control room including P&C installation along with all building services

Protection and control cables and terms

Installation of SCADA system

Switchyard lighting

FortisBC Black Mountain Substation

Westwood was contracted by FortisBC to complete the installation of the Protection and Control panels and wiring including all building services and battery room for the complete Greenfield Black Mountain substation. This installation included;

138kV / 25kV 40MVA transformer

Installation and jumper wiring of all P&C panels

SF6 Circuit breakers

Disconnect switches

High voltage metering (CT’s and PT’s)

Protection and control cables and terms

Building services installation including battery room installation and charger installaiton

The project schedule was very aggressive and Westwood double shifted our workers to ensure the FortisBC schedule objectives were achieved.

FortisBC Duck Lake Brownfield Substation

Westwood was awarded the Prime and General Contract for the installation of the Duck Lake Substation physical arrangement and complete electrical installation. The substation was an existing station that had been de-energized and isolated from the system in order to install and upgrade. The installation scope included;

Installation, assembly, dressing and oiling of the 138/25kV 40MVA transformer

Wiring of new P&C control room including P&C installation along with all building services

Protection and control cables and terms

Installation of SCADA system

Switchyard lighting

Commissioning assistance for Fortis upon startup

FortisBC Westminster Brownfield Substation

Westwood was awarded the Prime and General Contract to complete all above grade physical related work required to add a new 40MVA, 63kV/13kV power transformer T3 in a Brownfield substation environment. T3 addition was required to facilitate an 8.6kV to 13kV voltage conversion program for the City of Penticton.

The upgrade also included:

60kV and 13kV bus structures

HV and LV foundations

Transformer containment and drainage

Upgraded station grounding

All required conduits

Cabling and other supporting infrastructure
Removal of the existing T2 transformer which was a 15MVA, 63kV/8.6kV unit

Mosaic K3 25kV Substation

Westwood was awarded the design build of a new 25kV substation to service the power requirements for the freeze ring for shaft sinking.

The scope consisted of a demolition and rebuilds of unit # 3 boiler, 150 MW turbine generator, and complete installation of the flue gas building.

Unit #3 and #4 turbine/generator share a common control room so the demolition of unit #3 could not effect or shutdown unit #4. During the demolition many cables were removed and many identified as having common controls between the two turbine generator units.

Building services including lighting, fire alarm, welding and service outlets, and make-up air units

Cable tray installation, all power, control and instrumentation cabling installation

All motors (5kV& 600V), devices and instrumentation scope

Approximately 10,500 meters of cable tray installed

Approximately 230,000 meters of cable pulled, glanded, and terminated

Approximately 2,700 instruments installed

Pre-Commissioning of the complete system

The new flue gas building was done from start to finish by Westwood including:

Building and equipment grounding

Building services including lighting, fire alarm, welding and service outlets, and make-up air units

Cable tray installation, all power, control and instrumentation cabling installation

Installation of all MCC’s, DSC and PLC electrical room

All terminations/commissioning

The rebuild of the boiler was done in parallel with the turbine/generator rebuild and was congested with several other trades. Collaborative efforts with SaskPower Engineers were critical to keep the unit #4 grid operational and Westwood achieved the demolition and rebuild without power interruption to the grid and no harm to personnel or equipment.

SaskPower Pasqua Substation Static Var System

Westwood assembled and installed all equipment and interconnecting conductors supplied by AlstomGrid. This project was carried out in an existing energized 138/16kV substation.

Siemens GIS & Cable Installation

Tolko Armstrong Co-generation Facility

Electrical installation of a woodfibre power boiler, 20MW generator, steam turbine, air condensing coils and associated equipment. Electrically, the project team decided to use state of the art control systems for this installation. The challenge was the coordination of the old and new equipment.

Westwood Engineering was responsible for:

Design and procurement of the new 20MVA - 138kV / 12kV substation

Fieldbus junction design and lay-out in coordination with automation designer

Building services including lighting, fire alarm, welding and service outlets, and make-up air units

Cable tray installation, all power, control and instrumentation cabling installation

All motors (4160 & 480V), devices and instrumentation scope

Weyerhaeuser 30MW Turbo Generator Facility

Westwood was contracted by Weyerhaeuser Engineering Services for the installation of a 30 MW Steam Driven Turbine Generator, 15kV modifications to the site wide 15kV distribution system, and modifications within the 138kV / 15kV substation.

Building services including lighting, fire alarm, welding and service outlets, and make-up air units

Cable tray installation, all power, control and instrumentation cabling installation

All motors (480V), devices and instrumentation scope

New 15kV switchgear to existing 15kV switchgear and creation of a tie bus system

Pre-shutdown Safe Work plans were developed over months in advance of the shutdown to ensure all tasks were identified and completed safely and on time.

Major modifications were completed during a 24 hour shutdown to the existing switchgear controls, substation and tie bus.

During the 24 hour power outage shutdown temporary 1500kW diesel generators were used to power up specific power distribution centers and lighting loads for areas requiring task, egress and walkway lighting, including the boiler stairwells and multiple floors, the existing switchgear / MCC room.